matlab-figure

I want to draw a contour plot for 3D data. I have a force in x,y,z directions I want to plot the contour3 for that the dimensions of the Fx = 21x21X21 same for Fy and Fz I am finding force = f*vector(x,y,z) Then Fx(x,y,z) = force(1) Fy(x,y,z) = force(2) Fz(x,y,z) = force(3) I did the following but it is not working with me ?? why and how can I plot that FS = sqrt(Fx.^2 + Fy.^2 + Fz.^2); x = -10:1:10; [X,Y] = meshgrid(x); for i=1:length(FS) for j = 1:length(FS) for k=1:length(FS) contour3(X,Y,FS(i,j,k),10) hold on end end end This is the error I am getting Error using contour3 (line 129) When Z

For some reason, I would like to plot the line and marker of the same data separately. data1 = (1:1:10)'; data2 = (1:2:10); figure(1); plot(data1,data1,'or'); hold on; plot(data2,data2,'-r'); legend('data'); However it will only display the legend for the first plot. And Matlab seems not to have option to manipulate the legend marker, color and linestyle. How can I make legend like this? Thanks! You will need to plot an invisible third plot (with almost no data to keep it fast) to define your legend: data1 = (1:1:10)'; data2 = (1:2:10); figure(1); plot(data1,data1,'or'); hold on plot(data2

str = {'HS31'; 'HS31 (Ridotto)'; 'Dax85';'Dax85 (Ridotto)'; 'FTSE89';'FTSE89 (Ridotto)'; 'SP98';'SP98 (Ridotto)'; 'Nikkei22';'Nikkei225 (Ridotto)'; 'SP457';'SP457 (Ridotto)'; 'Russ1318';'Russ1318 (Ridotto)'; 'Russ2151';'Russ2151 (Ridotto)'; 'Eurostoxx';'Eurostoxx (Ridotto)'; 'Ftse';'HS31 (Ridotto)'; 'Mibtel';'Mibtel (Ridotto)'; 'SP';'SP (Ridotto)'; 'Nasdaq';'Nasdaq (Ridotto)'; }; h=figure; bar(t); set(gca, 'XTickLabel',str, 'XTick',1:numel(str)) saveas(h, 'Backtesting/computing_time.png'); I can't read the text below the plot. Do you know how to fix it? Screenshot: https://www.dropbox.com/s

I am trying to create a "solid" cylinder that has a filled top and bottom to it. I know that there is the function cylinder(r) that creates one, though it does not have a top and bottom circle to "close it". I did some research and can't seem to find a function that does this. I have found this: http://www.mathworks.com/help/symbolic/mupad_ref/plot-cylinder.html though it is mupad code, and I don't know how to call that function from matlab (from my .m file). Once again, I have done some research and this is what I have found, though is does not seem to work: http://www.mathworks.com/help

I have the following code, which plots a 'map' using imagesc, and provides a legend, see output attached. I am trying to replace the lines in the legend with solid squares. My attamps to far leave the lines and ad hollow squares (including a random square in the top left corner of the figure) figure(6) imagesc(lut) title('Ditribution of Land use Types') ylabel('Longitude') xlabel('Latitude') caxis([0, 7]) myColorMap = jet(6); imagesc(lut, 'AlphaData', ~isnan(lut)) colormap(myColorMap); L = line(ones(6), ones(6)); set(L, {'Color'}, num2cell(myColorMap, 2)) legend(L, {'Forest','Shrubland',

When I display a bitmap image using image in a Matlab figure window, I'm experiencing strange artifacts: What I'm referring to are the cross-shaped structures which are particularly visible at the edges of the brain slice, but present throughout. These structures are not in the underlying image data, which are exactly identical to those in this image: I assume the artifacts have to do with the slight rescaling that is necessary to match the image to the given axes size. Does someone have an idea how to avoid these artifacts? I tried changing the figure 'Renderer' , which does indeed affect the

In MATLAB, I plot many different vectors to a figure. Now, what I would like to do is simply undo the last vector that I plotted to that figure, without clearing everything else. How can this be accomplished? Can it be accomplished? Thanks Edit: figure(1); clf(1); N = 100; x = randn(1,N); y = randn(1,N); z = sin(1:N); plot(x); hold on; plot(y,'r'); plot(z,'k'); Now here, I would like to remove the plot z, which was the last plot I made. If you know before plotting that you want to remove it again later, you can save the handle returned by plot and delete it afterwards. figure; h1 = plot([0 1 2